\begin{myenv}
	\part{main title}
	part body
	\chapter{\emph{emphasise}title text}
	 body text body text
	 \section{section text}
	  section body
	 \section{section text}
	  section body
	  \subsection{sub title}
	  subsection body subsection body
	  \subsubsection{subsub section title}
	  subsubsubsubsubsubsub
	\chapter{second chapter}
	 chapter body chapter body
	 \part{another part}
	 more parts!
	\chapter{more chapter! :)}
	 some mathematics:
	 \[
		 x^2
	 \]
	 \subsection{and some section}
	 to wrap things up
\end{myenv}
